The former NY mayor said in an interview late Thursday with The Post that Cohen "isn't credible at all, and there are witnesses who know what he's claiming isn't true".
Giuliani's comments came days after CNN aired audio of a recording Cohen made of him and then-candidate Trump discussing a potential payment to Karen McDougal, a former Playboy model who has alleged she had an affair with Trump about a decade ago.
Cohen is under federal investigation in NY.
"I don't see how he's got any credibility", the former New York City mayor said. Giuliani declared that the tapes prove that his client's tweets about his relationship with Cohen were factual.
President Donald Trump 's private lawyer is accusing his former lawyer, Michael Cohen, of violating attorney-client privilege, ABC News reported on Saturday, cautioning him against making any more public disclosures about his dealings with the president. The government has been totally ethical about this, ' Giuliani said.
"I did NOT know of the meeting with my son, Don jr", Trump declared on Twitter Friday morning.
President Donald Trump's former personal lawyer, Michael Cohen, claims Donald Trump was aware of the infamous meeting before it occurred.
Still, Nunberg noted that Trump would have known about the Russian Federation lawyer meeting "under normal circumstances".
Giuliani told Fox he has hired technicians to determine if someone tampered with the tape, which cuts off abruptly. There an "untold number" of other tapes that have "no relation" to Trump, he said.
Trump, Donald Trump Jr., and others have said the president did not know about the meeting.
The President also attacked Cohen, claiming he is "trying to make up stories" because of his legal trouble. "The Washington Post has documented 3,251 false or misleading claims by Trump (so far)".
Giuliani's recent attacks against Cohen's character have been in stark contrast to his prior praise for Cohen.
Calling it a "dis-barrable offense", Giuliani told CBS' "Face The Nation" that "I did not know that he taped conversations surreptitiously".
That would contradict Trump Jr.'s testimony before the Senate Judiciary Committee past year, in which he said his father didn't know of the meeting. Because my father was exclusively focused on fulfilling his promise to the American people, responsibility for the company fell squarely on the shoulders of my siblings and me. "This nonsense needs to stop!"
But Davis said the president's team "forfeited all confidentiality" when Giuliani talked publicly last week about the tape.
"We have an outstanding offer to them". And that direct line between Russian interference and the president has never been proved before. Trump Jr. was later one of several top campaign officials, including Jared Kushner and Paul Manafort, who attended the meeting.
Cohen has recently made a concerted effort to distance himself from Trump. His trial is scheduled to begin this week.
"Rudy's spin is desperate, kind of sad", Stelter said.